Slingshot frame



FIG. 1 is a perspective view of a slingshot frame showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof;

The ornamental design for a slingshot frame, as shown and described.